Finding the Fourth Proportional to 93,082.56, 128,453.20 and 50,640.99
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Solution
The fourth proportional to 93,082.56, 128,453.20 and 50,640.99 is: 69,884.17
Step by Step Solution
- Step 1: Write the proportion equation
93,082.56 : 128,453.20 = 50,640.99 : x - Step 2: Convert to fraction form
93,082.56/128,453.20 = 50,640.99/x - Step 3: Cross multiply
93,082.56x = 128,453.20 × 50,640.99 - Step 4: Simplify right side
93,082.56x = 6,504,997,216.67 - Step 5: Solve for x
x = 6,504,997,216.67/93,082.56 - Step 6: Final answer
x = 69,884.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.